It’s a point of pride that I have every issue of Process Heating ever published cataloged in a small library in my home office. Admittedly, it’s not as tidy as you might find at your local library. I tend to stack issues that I “check out” on the floor in front of the library until it’s time to clean my office. And, while my lazy filing means a career as a bibliophilic cataloger is doubtful, it also provides opportunities for rediscovery.

In an interview with Editor Linda Becker, Despatch Industries’ Rolf Kragseth shares further insights about drying products with solvent loads — the type of drying typically done in Class A ovens.

Drying applications vary: from drying frac sand — a relatively simply process often performed for screening purposes — to applications like drying wetted primer in ammunition — a process that depends on accurate temperatures sustained over time. Yet, in drying applications from simple to complex, airflow and temperature uniformity makes a difference.

Process cooling is the function of removing heat in order to control or maintain appropriate temperature levels. Almost every manufacturing process produces a certain amount of excess heat due to friction or process heating.

Model APK is are available in diameters from 12 through 36” with capacities ranging to 23,000 cfm.

An electrically heated, 500°F (260°C) walk-in oven, No. 973 is used to cure rubber parts in rotating baskets. Workspace dimensions measure 36 x 60 x 60”, and 40 KW are installed in Incoloy-sheathed tubular elements.

Whether starting up a new oven for the first time or trying to determine what your real operating conditions are, it is important to understand oven performance. 

Used to heat stainless steel prior to welding, No. 812 has workspace dimensions of 6 x 3 x 3’.

With a maximum temperature rating of 550°F, the electric cabinet oven has workspace dimensions measuring 47” wide by 30” deep by 63” high.

Model FT1 offers advanced, direct, digitally controlled sensor technology.